X2 on the Drift Camera.
Screen, rotating lens, and RF remote are the big key factors. Other things to consider, with the drift you get 170° wide angle, aux mic input, standard camera mount (think RAM mounts), option for extended battery, lots of flexibility on scene modes/controls, etc.
$170 for a Drift HD170 Stealth, I don't think there's a better deal out there right now. The Contour has nice features, as well as the Hero 2, but as Emflys pointed out, they still lack the remote. I'd like to get my hands on a Drift HD and see if the price is worth the difference. But I'm not sure if the smaller size and removable lens is justification IMO.
AND... Drift Innovation and
http://www.mypov360.com supported the 2011 backcountrypilot.org raffle at JC this year by giving us a HD170 Stealth.
